I just had a miscarriage

so I just had a miscarriage about 2-3 weeks ago. It was hard on me and I lay with one of the babys onesies all the time, it's my security blanket kinda. Anyways, last night my boyfriend and I had sex. And he was pulling out when we first started having sex again. Last night he didn't and I'm ovulating and I was wondering if there was anyway that I could get pregnant again? Like would i have a period this month if my body ends up conceiving? or next month?